Abstract Watermarking of medical images greatly helps to provide authentication for safe storage and transmission of image databases. Though proper methodologies for indexing the medical images would provide faster retrieval performance, the problems have not been greatly addressed in the literature. This paper presents a review on image watermarking algorithms for indexing medical images. We have attempted at embedding and extraction of both visible and invisible watermarking algorithms over a set of 23 patient’s lung images. Results obtained establish the need for watermarking algorithms which show enhanced embedding as well as extraction performance for meeting the medical image indexation requirements.

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[22] Xuehua J., Digital Watermarking and its Application in Image Copyright Protection, in Proceedings of the IEEE International Conference on Intelligent Computation Technology and Automation, Changsha, pp. 114- 117, 2010. Jasmine Selvakumari (Corresponding Author) is pursuing her research under Anna University, Tamil Nadu, India. She received her B.E in Computer Science and Engineering from Manonmaniam Sundaranar University in 2001 and M.E in Computer Science and Engineering from Karunya University in 2007. She is having more than 12 years of teaching experience. Currently she is serving as an Assistant Professor in Department of Computer Science and Engineering at Hindusthan College of Engineering and Technology, Coimbatore, Tamil Nadu, India. She has published more than 11 papers in international journals in the field of data mining and information security. Her research area includes medical information security, database security and image processing. She is a life member of Institution of Engineers and Computer Society of India. She has received the Active Participation Woman Member Award in 2014 and Largest Continuous SBC Award in 2014 and 2015 from Computer Society of India. Suganthi Jeyaraj has completed her B.E in Computer Science and Engineering from Madurai Kamaraj University, Tamil Nadu, India in 1991 and M.E in Computer Science and Engineering from Bharathiar University, Tamil Nadu, India in 2004 and Ph.D in Anna University Chennai, Tamil Nadu, India in 2008. She is now working as a Principal, Hindusthan Institute of Technology Coimbatore. She has 15 years of teaching experience and 8 years of Industry experience. Her area of research includes Data Mining, Modeling and Simulation, Network Security, Digital Image Processing, Neural Networks, Soft Computing Techniques, Evolutionary strategies. She has published 3 books and 54 papers in international journals. She is a life member of Institution of Engineers, Indian Society for Technical Education, IEEE and Computer Society of India. She has produced seven doctorates and currently guiding 4 research scholars. She is an active consultant for research projects. She has received the Best Faculty award from Cognizant Technology Solutions and an Outstanding Faculty award from Venus International Foundation 2015.